The Kociewiacy are a Polish ethnic group. They live in Pomerania south of Gdansk. The region they inhabit is called Kociewie and has well developed industry and agriculture. The capital city of Kociewie is Starogard Gdanski, while their biggest city is Tczew. Most of the Kociewiacy are Roman Catholics.

They live next to the other important ethnic group in the area, the Kashubians.